US2525309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide roller and hinge structure
Assignee: Raynor Manufacturing Co
•
Filing: 1947-11-20
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Granted: 1950-10-10
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Expires: 1967-11-20
Abstract
No abstract record available.
Inventors
- 👤 William A Norberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:55
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/16; E05D15/24; E05D15/242; E05D15/165; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/688; E05Y2201/706; E05Y2600/00; E05Y2600/10; E05Y2600/30; E05Y2600/33; E05Y2800/00; E05Y2800/40; E05Y2800/412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2070557A
Cited
US2124969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |